Siemens SIMATIC NET SCALANCE W760 Series Configuration Manual page 32

Technical basics
3.6 Spanning Tree
Multiple Spanning Tree Protocol (MSTP)
The Multiple Spanning Tree Protocol (MSTP) is a further development of the Rapid
Spanning Tree Protocol. Among other things, it provides the option of operating several
RSTP instances within different VLANs or VLAN groups and, for example, making paths
available within the individual VLANs that the single Rapid Spanning Tree Protocol would
globally block.
Note
Default setting
HTTP is enabled as default on the device.
Common and internal Spanning Tree (CIST)
CIST identifies the internal instance used by the switch that is comparable in principle with
an internal RSTP instance.
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SCALANCE W760/W720 to IEEE 802.11n Web Based Management
Configuration Manual, 11/2014, C79000-G8976-C350-03